C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/510.8
C07C 51/255 (2006.01) C07C 51/265 (2006.01)
Patent
CA 1041539
PROCESS FOR PRODUCING TEREPHTHALIC ACID Abstract of Disclosure: There is disclosed a process for producing terephthalic acid in which the reaction temperature range and the proportion of catalyst components of a cobalt compound, a manganese compound and at least one bromine compound are specifically chosen to produce a high grade terephthalic acid suitable for direct polycondensation in the production of polyester.
255706
Hashizume Hiroshi
Izumisawa Yoshiaki
Kimura Tsuneo
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